F01N 3/2825
Ceramics
Official title: {Ceramics (F01N3/2832, F01N3/2835 take precedence)}
F01N3/2825 (Ceramics) appears on 1,067 US grants and 1,169 published applications in this corpus.
Search patents in F01N- Granted patents
- 1,067
- Published applications
- 1,169
- Assignees
- 283
- Inventors
- 1,980
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 10 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 13 | 0 |
| 1996 | 10 | 0 |
| 1997 | 13 | 0 |
| 1998 | 12 | 0 |
| 1999 | 8 | 0 |
| 2000 | 12 | 0 |
| 2001 | 13 | 7 |
| 2002 | 9 | 19 |
| 2003 | 16 | 31 |
| 2004 | 17 | 37 |
| 2005 | 14 | 47 |
| 2006 | 22 | 41 |
| 2007 | 17 | 38 |
| 2008 | 22 | 37 |
| 2009 | 27 | 58 |
| 2010 | 33 | 28 |
| 2011 | 37 | 28 |
| 2012 | 31 | 28 |
| 2013 | 26 | 20 |
| 2014 | 25 | 59 |
| 2015 | 39 | 58 |
| 2016 | 41 | 41 |
| 2017 | 42 | 72 |
| 2018 | 40 | 74 |
| 2019 | 68 | 80 |
| 2020 | 64 | 60 |
| 2021 | 65 | 70 |
| 2022 | 63 | 76 |
| 2023 | 45 | 79 |
| 2024 | 44 | 45 |
| 2025 | 43 | 19 |
| 2026 | 29 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Exhaust gas purification device and method for manufacturing exhaust gas purification device29 Sep 2026US 12,746,533 B2Cataler Corporation
- Method for manufacturing exhaust gas purification catalyst29 Sep 2026US 12,746,538 B2Cataler Corporation
- Honeycomb structure8 Sep 2026US 12,728,377 B2NGK Insulators, Ltd.
- Catalytic material for treating an exhaust gas produced by a natural gas engine1 Sep 2026US 12,722,145 B2Johnson Matthey Public Limited Company
- Composite, zoned oxidation catalyst for a compression ignition internal combustion engine25 Aug 2026US 12,714,990 B2Johnson Matthey Public Limited Company
- Honeycomb structure20 Aug 2026US 2026/0241375 A1NGK Insulators, Ltd.
- Exhaust Gas Purification Catalyst20 Aug 2026US 2026/0243188 A1Cataler Corporation
- A multifunctional catalyst system30 Jul 2026US 2026/0216650 A1Dinex A/S
- Exhaust gas purification catalyst30 Jul 2026US 2026/0216702 A1Mitsui Mining & Smelting Co., Ltd.
- Method for Manufacturing Exhaust Gas Purification Catalyst30 Jul 2026US 2026/0216717 A1Cataler Corporation
Most cited
By later US patents
- Method and apparatus for treating an engine exhaust gas stream154US 6,171,556 B2Engelhard Corporation · 2001
- Catalyzed SCR filter and emission treatment system132US 7,229,597 B2BASFD Catalysts LLC · 2007
- Method for producing ceramic honeycomb filters127US 4,293,357 ANGK Insulators, Ltd. · 1981
- Monolithic catalyst member and support therefor105US 4,335,023 AEngelhard Corporation · 1982
- Ceramic honeycomb filter for purifying exhaust gases93US 4,857,089 ANGK Insulators, Ltd. · 1989